<nav class="navbar navbar-default">
          <div class="container-fluid">
            <div class="collapse navbar-collapse tools" id="bs-example-navbar-collapse-1">
              <form class="navbar-form navbar-left " action="/System/Index/lists/module/datamodel" role="search">
                <div class="form-group">
                  <select class="form-control">
                    <option>关于我们</option>
                    <option>—新闻中心</option>
                    <option>—数据库管理</option>
                    <option>——模型管理</option>
                    <option>终极权限</option>
                    <option>——系统设置/菜单设置</option>
                  </select>
                </div>
                <div class="form-group">
                  <input type="text" class="form-control" placeholder="起始时间">
                </div>
                <div class="form-group">
                  <input type="text" class="form-control" placeholder="终止时间">
                </div>
                <button type="submit" class="btn btn-default">查询过滤</button>
              </form>
              
            </div><!-- /.navbar-collapse -->
          </div><!-- /.container-fluid -->
        </nav> <!-- end工具条 -->